If you have a 99 or 2000 Sportsman 335, the part number is 4010164 and it is no longer available. the LR60 module on the late 2000 335 was part number 4010249 which was superseded to 2204571 (and is no longer available also) was used on late 2000 - 2002 all models of 335's.
It is the fan control module - it turns the fan on at one temperature and if the oil temp continues to rise, turns the hot light on.
It is a 6 wire module. the ATV is new to me, had an oil leak and we found a seal had popped out, once we pressed it back in place it ran fine, then the smoke started coming from the front and we located the module with the issue. the black filler around the wire was bubbling and smoking. ATV came from a forestry authority in Georgia.
That is the rec/reg (LR-35 module) - it's for charging the battery - they do fail frequently especially if you add lights, run with a defective battery or don't maintain the wire connections - part number 4060191 or 2205046 (no longer available from Polaris), but all over Ebay both new and used
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